STM32 MCUs Security

Ask questions and find answers on STM32 security frameworks and tools, including cryptographic libraries, TrustZone, and the Secure Manager.

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Resolved! SBSFU with FreeRTOS causing FIREWALL RESET FAULT

Hi everyone,I am using STM32L4A6 with FreeRTOS running on it. I integrate SBSFU according to UM2262 and AN5056. After jumping to application, the firmware triggered Firewall reset when calling osKernelStart() .I already turned SysTick off before jump...

SL61 by Associate II
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  • 8 replies
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Resolved! Firmware image size required for AES CBC encryption

I am trying out the sample projectSTM32CubeExpansion_SBSFU_V2.2.0/Projects/NUCLEO-H753ZI/Applications/1_Image.I have completed the following build steps:prebuild.pyBuild SECoreBinBuild SBSFUBuild UserAppThe last step postbuild.py (which is SECBOOT_EC...

chuan_lee by Associate II
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  • 4 replies
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Hardware AES 256 CBC Incorrect results

Hi,I am new the the development and I have been testing the hardware aes module.I have tested against a known vector and the results differ from what is expected, I have checked the test vectors using AES provider in .NET and I get the results I expe...

POliv by Associate II
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  • 5 replies
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STM32F412 CRC32 uint8_t array as input.

Hi,I have (for example) a byte array with the size of 6. Now I want to calculate its crc32 value. The first 4 bytes are no problem - I put them in as word, but what about the last 2 bytes?Thanks for the Help in advance.BRNico

NKorn.12 by Associate II
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  • 2 replies
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Resolved! Secured boot with a secured & non-secured application

Hello,I now understand that I should have asked the question differently.Let's say we have 2 applications: secured and non-secured application.The secured is placed in inetrnal flash, just as done in the demo of SBSFU,But the non secured should be pl...

ranran by Senior II
  • 1405 Views
  • 9 replies
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sha1_alt.c (mbedTLS implementation) bug?

I have a file from ST, not sure where it comes from but the header has:sha1_alt.c for SHA1 HASHCopyright (c) 2017, STMicroelectronicsI am getting issues with the function that call HAL_HASH_SHA1_Accumulate function.They are no checking for size/len i...